Evaluation of Typical Pavement Drainage Systems Using Open Graded Bituminous Aggregate Mixture Drainage Layers PDF Download

Author: Ernest J. Barenberg
Publisher:
ISBN:
Category : Aggregates (Building materials)
Languages : en
Pages : 88

Get Book

Book Description
This study was aimed at evaluating the performance of pavement drainage systems that can be used in the State of Illinois using locally available aggregate sources for construction of these drainage systems. The study was limited to investigations on the use of open-graded, hot-mixed bituminous aggregate mixtures (OGBAM), for use in the pavement drainage system. A preliminary investigation was carried out in the laboratory to evaluate the permeability and the stability of the OGBAM. Specimens were prepared according to the procedures given by ASTM D 1559, Resistance to Plastic Flow of Bituminous Mixtures Using Marshall Apparatus. Permeability test (using a constant-head permeameter that allowed the measurement of permeability at low heads) and stability test were performed on the same specimen. Using the results of the preliminary investigations, six test pavements (4 feet long) incorporating different design concepts were tested in the University of Illinois Test Track. Dynamic loading was applied to the test pavements and water was passed through the OGBAM drainage layers to simulate surface and lateral infiltration. Permeability tests at constant head were carried out regularly on the pavement test sections. The progress of rutting in the test pavements was also recorded. Results of these limited tests indicate that OGBAM possess a very high order of permeability, and that care must be taken to prevent the migration of subgrade fines into the OGBAM layers for satisfactory performance of OGBAM layers with regards to drainage. The report outlines some of the methods that can be used to ensure satisfactory performance of pavements using OGBAM layers.